Contents
How to update or insert new records using SSIs?
Retrieve the SK of the destination table. Write new rows immediately to the destination using an OLE DB Destination with Fast Load. Write the updates, together with the found SK to a staging table. After the dataflow, put an Execute SQL Task that does an UPDATE statement. Use the SK of the destination table to find the rows to be updated.
How to update the SQL table data in the SSIS data flow task?
Based on flag value, flow will split in 2. You can update the column IsValid by using Derived Column transformation task. Flow should like below: The flow you have provided seems to be complicated for my scenario.
How to update the source table in SQL?
A simpler approach may be to just add an Execute SQL Task after the Data Flow Task that updates the source table based on the transferred records from the destination table. For the update, you’ll want to do a set-based update, such as the SQL statement below.
When do I set SSIs _ transferred to 1?
In the source table there is a bit column for SSIS_TRANSFERRED that I wish to set to 1 when the copy process completes. However, I’m unsure how to approach this.
What’s the difference between insert and replace in SQL?
Update will change the existing records value in table based on particular condition. So you can change one or many records in single query. Insert or Replace will insert a new record if records is not present in table else will replace. Replace will only work if and only if you provide the primary key value in the insert or replace query.
Is it necessary to update primary key in SQL Server?
It is tricky to cascade all the necessary foreign keys changes. It is a best practice to never update the primary key, and if you find it necessary, you should use a Surrogate Primary Key, which is a key not derived from application data.
What happens when you update the PK in a primary table?
When you then update a value in the PK column in your primary table, the FK references in the other tables will be updated to point at the new value, preserving data integrity. When you find it necessary to update a primary key value as well as all matching foreign keys, then the entire design needs to be fixed.